On Mon, 2013-05-27 at 10:44 +0300, Eliezer Tamir wrote: > adds busy-poll support for TCP. >
Really, this is a small changelog for such an addition :( How poll()/epoll() is supported ? > Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> > Signed-off-by: Jesse Brandeburg <jesse.brandeb...@intel.com> > Tested-by: Willem de Bruijn <will...@google.com> > Signed-off-by: Eliezer Tamir <eliezer.ta...@linux.intel.com> > --- > > net/ipv4/tcp.c | 5 +++++ > net/ipv4/tcp_input.c | 1 + > net/ipv4/tcp_ipv4.c | 2 ++ > 3 files changed, 8 insertions(+), 0 deletions(-) > > diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c > index d87ce72..652c75a 100644 > --- a/net/ipv4/tcp.c > +++ b/net/ipv4/tcp.c > @@ -279,6 +279,7 @@ > > #include <asm/uaccess.h> > #include <asm/ioctls.h> > +#include <net/ll_poll.h> > > int sysctl_tcp_fin_timeout __read_mostly = TCP_FIN_TIMEOUT; > > @@ -1551,6 +1552,10 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, > struct msghdr *msg, > struct sk_buff *skb; > u32 urg_hole = 0; > > + if (sk_valid_ll(sk) && skb_queue_empty(&sk->sk_receive_queue) > + && (sk->sk_state == TCP_ESTABLISHED)) > + sk_poll_ll(sk, nonblock); > + > lock_sock(sk); > > err = -ENOTCONN; > diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c > index 9579e1a..4d82939 100644 > --- a/net/ipv4/tcp_input.c > +++ b/net/ipv4/tcp_input.c > @@ -74,6 +74,7 @@ > #include <linux/ipsec.h> > #include <asm/unaligned.h> > #include <net/netdma.h> > +#include <net/ll_poll.h> > Not sure why this include is needed in this file ? You added nothing else but this line. > int sysctl_tcp_timestamps __read_mostly = 1; > int sysctl_tcp_window_scaling __read_mostly = 1; > diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c > index d20ede0..35fd8bc 100644 > --- a/net/ipv4/tcp_ipv4.c > +++ b/net/ipv4/tcp_ipv4.c > @@ -75,6 +75,7 @@ > #include <net/netdma.h> > #include <net/secure_seq.h> > #include <net/tcp_memcontrol.h> > +#include <net/ll_poll.h> > > #include <linux/inet.h> > #include <linux/ipv6.h> > @@ -2011,6 +2012,7 @@ process: > if (sk_filter(sk, skb)) > goto discard_and_relse; > > + sk_mark_ll(sk, skb); > skb->dev = NULL; > > bh_lock_sock_nested(sk); How IPv6 is handled ? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
